Horizontal axis wind turbine and secondary wind rotor

Abstract

A wind turbine (1) is disclosed, for converting wind energy into electric energy, comprising:—a shuttle (2) comprising a head portion (11) and a tail portion (12);—a primary wind rotor (3) pivotable with respect to the shuttle (2) around a primary rotational axis (A1) and comprising a primary group of blades (4), a fastening hub (5) for said blades (4) projecting from the head portion (11) of the shuttle (2) and a shaft adapted for being rotatably moved by the primary wind rotor (3);—at least one primary electric generator comprising at least one primary electric stator integral with the shuttle (2) and a primary electric rotor integral with said shaft or operatively connected to it, the primary electric generator adapted to convert wind energy intercepted by said primary group of blades (4) into electric energy. The wind turbine (1) also comprises a secondary wind rotor (15) pivotably hinged to the tail portion (12) and comprising a secondary group of blades (25) pivotable around a secondary rotation axis (A2) perpendicular to the primary rotational axis (A1).

Dependencies are inferred from the claim text.